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Why do planes go faster than trains?


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Answered 2009-06-18 05:50:42

Planes must move quickly in air or else they fall out of the sky,

trains can travel at any speed.

It is possible to design trains to travel at aircraft speeds (sub-sonic only) but it is prohibitively expensive.

If a train were to travel through a tunnel in a vacuum, it could travel at any speed short of the speed of light, in theory.

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